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    • 8. 发明授权
    • Method for manufacturing semiconductor device
    • 制造半导体器件的方法
    • US07211502B2
    • 2007-05-01
    • US10806353
    • 2004-03-23
    • Shunpei YamazakiTetsuji YamaguchiAtsuo Isobe
    • Shunpei YamazakiTetsuji YamaguchiAtsuo Isobe
    • H01L21/44
    • H01L21/76843G02F1/136227H01L21/76882
    • A method for manufacturing a semiconductor device in which lower cost can be realized, a wiring with favorable coverage can be formed in a contact hole having a large aspect ratio, wiring capacitance can be reduced and a multilayer wiring can be formed, can be provided. In order to obtain the semiconductor device, the following steps are required; forming a first conductive film which serves as a barrier so as to be in contact with an organic insulating film with an opening portion formed; forming a second conductive film including aluminum so as to be in contact with the first conductive film; or forming a nitride film so as to be in contact with the organic insulating film with the opening portion formed; patterning the nitride film; forming a first conductive film which serves as a barrier so as to be in contact with the nitride film; forming a second conductive film including aluminum so as to be in contact with first conductive film; and thereafter selectively performing a heat treatment under reduced pressure or in normal pressure, and flattening the second conductive film.
    • 一种制造可以实现更低成本的半导体器件的方法,可以在具有大纵横比的接触孔中形成具有良好覆盖的布线,可以减少布线电容并且可以形成多层布线。 为了获得半导体器件,需要以下步骤: 形成作为屏障的第一导电膜,以与形成有开口部的有机绝缘膜接触; 形成包含铝的第二导电膜以与第一导电膜接触; 或形成氮化物膜,以与形成有开口部的有机绝缘膜接触; 图案化氮化膜; 形成用作阻挡层以与氮化膜接触的第一导电膜; 形成包含铝的第二导电膜以与第一导电膜接触; 然后选择性地在减压或常压下进行热处理,并使第二导电膜变平。